Struts-Plugin.xml File

• This file has the ability to override framework constants, introduce new implementation classes and define new packages that have interceptors and actions.
  
  

Functions

• Struts plugins are used to distribute framework features, organize application code and also to distribute code to third-party applications.
  
  

Plugin Associations

• When loading plugins, no particular order is required. They also should not have any dependencies to each other nor should they have dependencies on classes associated or loaded by a different plugin.
  
  

Contributed Plugins

• Since the Apache Struts is a simple architecture, developers are free to develop and extend its capabilities using plugins. The fact that these plugins are contained in JAR files makes them easy to distribute online.